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Flowmaster 817428 American Thunder Cat-Back 99-06 GM Silverado/Sierra 4.8L/5.3L (Ext Cab) Canada Performance Improvements

Flowmaster 817428 American Thunder Cat-Back 99-06 GM Silverado/Sierra 4.8L/5.3L (Ext Cab)

Flowmaster

  • $919.88 CAD


American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

More Flowmaster in store, even if you don't see it here! Give us a call toll free: 1-877-471-6700 or visit one of our Speed Shop locations.


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